I have a Dell M6500 with an Nvidia Quadro FX 2800M GPU. Whenever I try to play a game or put the GPU under any load, after 2-15 minutes it will freeze up with a black screen. The computer will be unresponsive and i have ti hold the power button to reset. However when i take out the power adapter to run on battery, or purposefully crash the GPU in MSI Afterburner by overclcking, the GPU runs at a much lower clock speed than its supposed to and everything will work properly although much slower than it could. Is this caused by the fact that my power adapter is 130W instead of the 210W its supposed to come with?